Lock



G. E. M. WIELAND LOCK July 31, 1923- 1,463,768

Filed Aug. 28, 1922 2 Sheets-Sheet 1 July 31, 1923- 1,463,768 G. E. WIELAND LOCK Filed Aug. 28 1922 2 Sheets-Sheet 2 Patented July 31, 1923.

entree smarts GEGBGE E. PM. WIELAN'D, 0F BALTIMORE, MARYLAND, ASSIGNOR FRANK BOEHMER, OF BALTIMORE, MARYLAND.

PATENT OFFICE.

or ONE-HALF '10 LOCK.

Application fi led August as, 1922. Serial 110.; 524,637.

To all whom it may concern;

Be it known that I, Gnonen E. M. Win- LAND, a citizen of the United States, residing at Baltimore, in the State of Maryland, have invented certain new and usefullmprovements in Locks, of which the following is a specification.

This invention relates to-improvements in looks, and has for its object to provide'a lock that can be readily operated by any one understanding the same but which is difiicult of operation by persons unfamiliar therewith. I

The invention consists of the novel construction and arrangement of the parts and combination Of partshereinafter more fully set forth in the following specification and pointed out in detail in the appended claims. 1 In the accompanying drawings,

Figure 1 is a top plan view of a lock having my invention applied thereto, the same showing the key hole in the closed position.

Figure 2 is a similar view to Figure 1,

Figure 3 is an enlarged detail plan view of the key barrel. 1

Figure 4c is a vertical longitudinal sec, tion of Figure 3. V

Figure 5 is an enlarged detail plan view of the keyhole cylinder. I

Figure 6 is a vertical longitudinal section of Figure 5. Y V

Figure 7 is a side elevation of the coiled spring which holds the key-barrel in its normal locked position.

Figure 8 is an enlarged detail plan view of the cylinder which carries the locking arm.

Figure 9 is a side elevationof Figure 8.

Figure 10 is an enlarged detail plan view of the disk that closed the key hole.

Figure 11 is an edge view of Figure 10.

Figure 12 is a side elevation of the key.

Figure 18 is an edge view of Figure '12.

Figure 1a is an enlarged vertical longitudinal section of the revolving cap which fits over the upper end of the locking cylinder and operates the disk over the key-hole;

Figure 15.is an inverted plan view of the revolving cap.

Figure 16 is an enlarged plan view of the lock with the top cover removed.

Figure 17 is a verticallongitudinal section of Figure 16, with the top cover thereon. Figure 18 is a top plan view of arnodified form of the cylinder that carries the locking arm. I

, Figure 19 is a side elevation of Figure 18.

Figure 20 is a side elevation of a modified form of key. 1

Figure 21 is an edge view of Figure 20.

Figure 22 is a top plan view-of a modified form of key-barrel.

Figure 23 is a side elevation ofFigure 22.

Referring to the accompanying drawings, forming part of this specification, and in which like reference numerals designate like parts throughout the several views thereof, 1 designates a case having a cover 2 secured thereto by thev rivets 3 on the ends of the posts 4, but which may be secured in position thereon in any other suitable manner.

The bottom of the case 1 is provided with a locking lug 5 onits inner surface, pivoted or otherwise secured thereto. The said cover 2 has a central opening 6 into which project the lower end of the cylinder 7 its lower edge resting upon the inner surfaceof the casing 1. Theupper flanged end 8 of the cylinder 7 rests upon the upper surface of the cover 2 and is provided with an annular groove 9 near the top thereof and two recesses 10 leading from the 'upper edge down to said groove 9. The locking arm 11 is providedwith an integral sleeve 12 which fits around the lower end of the cylinder 7 within the case 1 and is held thereon by the set screw 13; said arm 11 having a locking bar 141 integral therewith. The key barrel 15 has a recess 16 in its lower endinto which the lug 5 fits when thelock is in the locked position, and a pin 17 projecting from one side thereof which extends into the slot 18 of the cylinder 7, which: causes thesaid cylinder 7 to revolve whenthe keybarrel 15 is turned to unlock the device. The upper endfof the keybarrel is screw thread.- ed .on its inner surface to receive the thread ed end of thebushing 19, which latter is provided with a key-hole 20 in .itS 11 1 81? end. Below the bushing19 the key barrel is provided with a number of steps 21 to I correspond with the end 22 of the key 23.

Projecting into the upper end of the cylinder 7 is a key-hole cylinder 24 having a key-hole 25 inits upper end, which latter is flush with the upper end of the cylinder 7, and an annular, flange 42 which fits up against the shoulder 26'of1thecylinder 7. The said cylinder 24 is provided with, a slot 50 extending upwardly from the lower end thereof and into which the pin 27 of the key barrel 15 operates. Between the flange 42 and the lower end of the 'key barrel 15 is a coiled spring 28 which holds the said key barrel 15 in the locked position, as shown in Figure 17. The uppersurface of the keyhole cylinder 24 is provided with numbers to indicate when the slot 26 is in vertical alignment'with the'pin'27. On the upper surface of the cylinder-7 is a pin'29 which fits into the aperture. 30 of the key-hole plate 31,;the latter having a central opening 32 and a pointer 33,to indicate when the. slot 50 isin vertical alignment with the ping27. The" cover ,34Vhas a central opening 35' and two lugs 36 which pass down the recesses 10, and when the cover 34 is turned fitinto the annular groove 9. The cover is also provided with an aperture 3.7 into which a pin 38 is fitted and secured whenthe cover is in' the proper position and has its lower end projecting into the elongated slot 390i the key-hole plate 31. When this pin 38' is securedin position with its lower end projecting into the slot 39 the cover 34 canbe turned 'a limited distanceto the right or to the left, which movement causes the plate 31 to move to cover or uncover'the key-hole 25, but will not permit the cover 34 to be turnedfar enough to bring the lugs 36in linewith the recess 1O,'thereby preventing the cover 34 from being removed.

The operation ofthe device is as follows: iWhen the lock is in the lockedposition the cover 34 and plate 31 are inthe position shown in Figure 1. The cover 34 is turned causing the plate 31 to uncover the key-hole, as shown in Figure 2. The key 23 is then inserted in the-key-hole'25 and the cylinder 24 turned until the desired number comes opposite the pointer 33 which indicate that the slot is in vertical alignment with the pin 27. Thekey is then lowered'and turned one-quarter; of a turn which permitsit to enter the key-ho'le20' in the bushing'19, it is then turned one quarter which brings theend 22 under the lower end of the bushing 19. The key is' then pulled upwardly which raisesthe key barrel 15 until it is above the' 'lug 5. The

key is then turned-causing the key barrel] 15 to tur'n, which owing to the pin 17 pro-1 jectinginto the slot 18 of the; cylinder 7, causes the latter to revolve carrying the locking arm 11 with it and moving the looking bar and unlocking the device. By turnclose over the key-hole.

'key for operating same.

ing the key in the opposite direction the device will be locked and held in this position by the coiled spring 28. The cover 34 is then turnedwhich causes the plate 31 to In Figure 18 to 23, both inclusive, 1 have shown a modification in the key-barrel and a r V In this modification the key barrel 4O fits up in the cylinder 41 and has a screw end 43 adapted to receive the screw end of the key 44, which is inserted through the upper end of the cylinder 41. The key is screwed on the threaded end of the key barrel 40 and the latter lifted and the cylinder and key barrel turned, as in the 'other'figures.

Havingthus described my invention,

what'I claim is: 7 My 1. A look comprising a case, a cylinderv revolubly secured in said case and project'- ing above the top thereof, a locking arm within said case and carried by said cylinder, a key-barrel mounted in said cylinder, V

akey-hole cylinder mounted in said first named cylinder and surrounding the upper end of said key-barrel, and means for turning said key-barrel and said first named cylinder.

2. A lock comprising'a case having ailug on "its lower inner surface, a cylinder revolubly secured in said case and'projecting above the top thereof, a locking arm within said case and carriedby said cy1in-. der, a key-barrel mounted in said cylinder and having a recess in its lower end in which said lug is adapted to fit,'a key-hole cylinder mounted in said first-named cylinder and surrounding the upper end'of the key-barrel, and means for turning said keybarrel and said first n'amed cylinder I 3. A look comprising a case having alug on its I innerf lower surface, a cylinder revolubly secured in said case and'projecting above the top thereof and provided with a slot inone side ofits lower end, a locking arm within said case and vcarried fby said cylinder, a key-barrel mounted in said cyl key-barrel to hold it in its normal locked position, and means for raising saidkeybarrel and turning same to unlock orilock the device.

' 4. A lock comprising' a case havinfgalug on its inner .lower surface, a cylinder revolubly secured in said case and project ing above the top thereof and provided with a slot in one side of its lower end, a locking arm with said case and carried by said cylinder, a key-barrel mounted in said cylinder and having a key-hole in its upper end and a recess in its lower end adapted to fit over the said lug on the case, a pin projecting from one side of said key-barrel and extending into the slot in the lower end'of the said cylinder, a key-hole cylinder mounted in said first-named cylinder and surrounding the upper end of the keybarrel and provided with a key-hole in its upper end and a vertical slot in one side of its lower end, a pin projecting from the said key-barrel and extending into the said slot in the lower end of the key-hole cylinder, a coiled spring surrounding said key-barrel to hold it in its normal locked position, and means for raising said key-barrel and turning same to unlock or look the device.

In testimony whereof I afiix my signature.

GEORGE E. M. WIELAND. 

